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Leucanthemum maximum (Ramond) DC., Prodr. 6 46 1838. (syn: Chrysanthemum burbankii Makino; Chrysanthemum grandiflorum Lapeyr. [Illegitimate]; Chrysanthemum maximum Ramond; Leucanthemum vulgare subsp. maximum (Ramond) O.Bolòs & Vigo; Matricaria ceratophylloides Poir.; Matricaria maxima (Ramond) Poir.; Phalacrodiscus ceratophylloides Less.; Phalacrodiscus maximus (Ramond) Less.; Tanacetum maximum (Ramond) Sch.Bip.) as per POWO;
Native to: France, Spain; Introduced into: Dominican Republic, New York as per POWO;
Pyrenees (France, Andorra, Spain), England (I), Italy (I), Poland (I), China
(I), Belarus (I), Puerto Rico (I), Ecuador (I), Bolivia (I), Mexico (I), Myanmar [Burma] (I), Vietnam (I), Costa Rica (I), Cuba (I), Colombia (I), USA (I) (Alabama (I), California (I), Wyoming (I)), Chatham Isl. (I) as per Catalogue of Life;
Leucanthemum maximum is a species of flowering plant in the aster family known by the common name max chrysanthemum. It is native to France and Spain but it can be found growing wild in other parts of the world as an introduced species and sometimes a garden escapee.
It is a rhizomatous perennial herb growing 30 to 70 centimeters tall with many large serrated leaves around the base of the stem on winged petioles. There are smaller lance-shaped leaves alternately arranged along the stem. The inflorescence is generally a large, solitary flower head which may exceed 8 centimeters in diameter. It has a fringe of 20 to 30 white ray florets around a center of many densely packed yellow disc florets. The fruit is a small ribbed achene without a pappus.
This species is one of the wild chrysanthemums Luther Burbank crossed to produce the popular garden hybrid known as the Shasta daisy, Leucanthemum x superbum.[1][2]
(from Wikipedia on 15.5.13)
Asteraceae Fortnigh Part 1-Radiate Heads: Leucanthemum maximum from California-GS47 : Leucanthemum maximum (Ramond) DC, Prodr. 6:46. 1838 (“1837”)
Syn: Chrysanthemum maximum Ramond
Common names: daisy-chrysanthemum, max-chrysanthemum
Similar to L. vulgare but larger in all parts, basal leaves up to 30 cm long, upper lanceolate to linear; heads 6-8 cm across, on long peduncles.
Photographed from California, cultivated.
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